Operation - Graco Husky Sanitary Series Instructions-Parts List Manual

Operation

Pressure Relief Procedure
WARNING
Read the PRESSURIZED EQUIPMENT HAZARD
warnings on page 4.
The equipment stays pressurized until pressure is
manually relieved. To reduce the risk of serious injury
from pressurized fluid or splashing fluid, follow this
procedure whenever you:
• are instructed to relieve pressure
• stop pumping
• check, clean or service any system equipment
1. Shut off the air to the pump.
2. Open the dispensing valve, if used.
3. Open the fluid drain valve to relieve fluid pressure,
having a container ready to catch the drainage.
Sanitize the Pump Before First Use
It is the user's responsibility to properly sanitize the
pump before using. This may include disassembly and
inspection of the wetted components. The pump was
tested in an NSF registered lubricant with incidental
food contact rating (H1). Remove compound by wiping
or washing, leaving surfaces free of any substance that
could be transferred to the product being processed.
Flush the pump thoroughly with a compatible cleaning
solution or disassemble and inspect. Follow the steps
under Starting and Adjusting the Pump or the Service
section.
Starting and Adjusting the Pump
1. Be sure the pump is properly grounded. Refer to
Grounding on page 6.
310622C
2. Check fittings to be sure they are tight. Use a com-
patible liquid thread sealant on male threads where
applicable. Tighten fluid inlet and outlet fittings
securely.
3. Place the suction tube (if used) in fluid to be
pumped.
If fluid inlet pressure to the pump is more than
25% of outlet working pressure, the ball check
valves will not close fast enough, resulting in inef-
ficient pump operation.
4. Place the end of fluid hose (L) into an appropriate
container.
5. Close the fluid drain valve (J).
6. Back out the air regulator (C) knob, and open all
bleed-type master air valves (B, E).
7. If the fluid hose has a dispensing device, hold it
open while continuing with the following step.
8. Slowly increase air pressure with the air regulator
(C) until the pump starts to cycle. Allow the pump to
cycle slowly until all air is pushed out of the lines
and the pump is primed.
When you are flushing, run the pump long enough to
thoroughly clean the pump and hoses. Close the air reg-
ulator. Remove the suction tube from the cleaning solu-
tion, drain pump, and place it in the fluid to be pumped.
Pump Shutdown
WARNING
To reduce the risk of serious injury, whenever you are
instructed to relieve pressure, always follow the Pres-
sure Relief Procedure at left.
At the end of the work shift, relieve the pressure.
Operation
13